A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5990-01-554-4128
NSN 5965-01-361-4565
NSN 6650-01-487-4566
NSN 5950-01-465-9260
NSN 6110-00-844-2564
NSN 5975-01-034-6745
NSN 6135-00-299-6374
NSN 6240-01-103-5300
NSN 7035-00-861-7913
NSN 6685-00-596-6924
NSN 6650-00-555-1061
NSN 6620-01-048-4145